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2/15 = x/2
(7/6)*x = 21/10
(1/2)*y = -21
((9-x^2)^3)/5
24/0.4 = 0
| x^2=-9+6x | | 2/15=x/2 | | 4x^2-3=-35 | | 7/6x=21/10 | | 1/2y=-21 | | (3+9)lnx=84 | | 30x-75=3x^2 | | 4x-2(x-5)=2 | | -5.4t+41-8.7+32t= | | 0.5+15+8.2x-16.6= | | 18x-6=19x-15 | | 10b-45=3(b-13) | | 24/0.40 | | -3.5x+1.7+9.1-0.3= | | x^2-5×-14/×^2-4 | | H=6+5w | | 7x-21=4x+6 | | 2x+10=-2x+6 | | -x^3+x^2+8=0 | | x-5-4x-2+2x-1= | | 211=14(k+8)-12 | | 3x+7=33.5 | | 4.5=-logx | | 6/9=3 | | 9+1=4t-9 | | 11x-8+7x-1= | | 6x-9=2x+23 | | 6x^2+9y^2=3 | | 17x-51=0 | | 0.4x+6.1forx=-5 | | b^2+18b-95=-7 | | 2a+18b=12 |